Grapevine plant named &#39;13-19-30&#39;

ABSTRACT

This new variety of grapevine cv. ‘13-19-30’ is new and different because of its very large, spherical, seedless berry and strong muscat flavor. It responds favorably to springtime applications of exogenous gibberellic acid, producing a loose, flexible cluster with a large increase in berry size over natural fruit. It represents the first red, seedless, muscat flavored table grape available to consumers.

GENUS AND SPECIES

[0001]Vitis vinifera

BACKGROUND AND SUMMARY OF THE INVENTION

[0002] The new table grapevine cv. ‘13-19-30’ is of Vitis vinifera parentage and resulted from a twenty year breeding program which had as its goal the development of a red, seedless, muscat-flavored table grape. The female, seeded parent (unnamed) resulted from a series of crosses involving ‘Hunisa’, ‘Flame Seedless’, ‘Emperor’, ‘Thompson Seedless’ and ‘Nocera’. The male parent of the cross is an unnamed, seedless grapevine resulting from a series of crosses involving ‘Emperor’, ‘Thompson Seedless’, ‘Red Muscatel’, and ‘Calmeria’. The hybridization resulting in ‘13-19-30’ was made near McFarland, Calif. in 1992. The seedling was selected from a population of 223 seedlings of like parentage in 1996. It was then propagated by cuttings and grafting to ‘Freedom’ rootstock in the spring of 1998. Those resulting plants were stable and typical of the original vine.

COMPARISON WITH PARENTAL CULTIVAR

[0003] The new grapevine variety, cv. ‘13-19-30’ somewhat resembles the variety ‘Flame Seedless’ (unpatented) which is one of its ancestors. However, its berries are substantially larger than those of ‘Flame Seedless’. It also differs from ‘Flame Seedless’ by having a distinctive muscat flavor and higher sugar levels.

DESCRIPTION OF THE FIGURES

[0004] The accompanying drawings illustrate the following:

[0005]FIG. 1: Fruit cluster at harvest.

[0006]FIG. 2: Cane, leaf, natural fruit cluster (left) and fruit cluster following gibberellic acid applications (right).

DETAILED BOTANICAL DESCRIPTION OF THE INVENTION

[0007] The following description of grapevine ‘13-19-30’ contains references to color names taken from the Munsell Color Chart for Plant Tissues, published by Munsell Color, New Windsor, N.Y. Descriptors used herein conform to those set forth by the International Board for Plant Genetic Resources Institute Grape Descriptors (Vitis spp.) of 1983 and/or 1997 which were developed in collaboration with the Office International de la Vigne et du Vin (OIV) and the International Union for the Protection of New Varieties of Plants (UPOV).

[0008] Descriptions of the new invention apply to vines of ‘13-19-30’ grown on ‘Freedom’ rootstock at a density of 1,537 vines per hectare grown in Kern County, Calif. in 2001. These vines were in their first year of full production having been planted in 1998. These descriptions are believed to apply generally to the new variety grown under similar circumstances elsewhere:

VINE

[0009] General:

[0010]Size.—Medium.

[0011]Vigor.—Medium.

[0012]Density of foliage.—Moderate.

[0013]Productivity.—Productive when spur pruned, up to 39,630 kg./hectare.

[0014]Trunk circumference.—15.3 cm. at 1 meter height.

[0015]Rootstock.—Freedom.

[0016] Trunk:

[0017]Shape.—Medium.

[0018]Straps.—Long, split.

[0019]Surface texture.—Shaggy.

[0020]Inner bark color.—Brown 2.5YR 4/8.

LEAVES

[0021] Mature leaves:

[0022]Average blade length.—17.1 cm.

[0023]Average blade width.—20.7 cm.

[0024]Size of blade.—Medium to large.

[0025]Shape.—Pentagonal.

[0026]Anthocyanin coloration of main veins on the upper side of the blade.—Slight or absent.

[0027]Mature leaf profile.—Flat.

[0028]Blistering surface of blade upper surface.—Absent.

[0029]Leaf blade tip.—In plane of the leaf.

[0030]Undulation of margin.—Moderate.

[0031]Apex.—Narrowly acuminate.

[0032]Thickness.—Medium.

[0033]Undulation of blade between main and lateral veins.—Slight.

[0034]Shape of teeth.—Conical, both sides convex.

[0035]Length of teeth.—Variable, 3-15 mm.

[0036]Ratio length/width of teeth.—About 1:1.

[0037]General shape of petiole sinus.—Broadly ovate.

[0038]Tooth at petiole sinus.—Absent.

[0039]Petiole sinus limited by veins.—Absent.

[0040]Shape of upper lateral sinus.—Closed.

[0041]Prostrate hairs between veins on lower surface of blade.—Absent.

[0042]Erect hairs between hairs on lower surface of blade.—Absent.

[0043]Prostrate hairs on main veins on lower surface of blade.—Absent.

[0044]Density of erect hairs on main veins on lower surface of blade.—Dense at vein junctions, sparse but persistent along entire length of main veins.

[0045]Prostrate hairs on main veins on upper surface of blade.—Absent.

[0046]Autumn coloration.—Yellow: 5Y 8/10.

[0047] Upper surface:

[0048]Color.—Dark green.—7.5 GY 4/4 to 4/6.

[0049]Surface texture.—Smooth.

[0050]Surface appearance.—Dull.

[0051]Goffering of blade.—Absent.

[0052] Lower surface:

[0053]Color.—Dark green.—7.5GY 5/6 to 5/8.

[0054]Anthocyanin coloration of main veins on lower leaf surface.—Absent or very slight at base of main veins.

[0055]Glossiness.—Low.

[0056]Pubescence.—Absent.

[0057]Surface texture.—Smooth.

[0058]Surface appearance.—Dull.

[0059] Petiole:

[0060]Length of petiole.—11.7 cm.

[0061]Length of petiole compared to middle vein.—Considerably shorter.

[0062]Density of prostrate hairs on petiole.—Absent.

[0063]Density of erect hairs on petiole.—Absent.

[0064]Shape of base of petiole sinus.—Broadly ovate.

[0065] Woody shoot:

[0066]Shape.—Stocky.

[0067]Internode length.—10.5 cm.

[0068]Width at node.—15 mm.

[0069]Cross section.—Circular.

[0070]Surface.—Smooth.

[0071]Main color.—Yellowish brown 7.5 6/6 to 6/8.

[0072]Lenticels.—Inconspicuous.

[0073]Erect hairs on nodes.—Absent.

[0074]Erect hairs on internodes.—Absent.

[0075]Growth of axillary shoots.—Prolific.

[0076] Buds:

[0077]Shape.—Conical.

[0078]Cane bud fruitfulness.—Basal buds fruitful, 1-2 clusters per shoot.

FLOWERS

[0079] General:

[0080]Flower sex.—Perfect.

[0081]Position of first flowering nodes.—3^(rd) to 4^(th).

[0082]Number of inflorescences per shoot.—1 or 2.

[0083]Date of full bloom.—May 15, 2001.

[0084]Time of bloom.—Average compared to other varieties growing in the area around McFarland, Calif.

FRUIT

[0085] General:

[0086]Ripening period.—Mid-season at Delano, Calif.; about 1 week after ‘Thompson Seedless’.

[0087]Date of ripening.—Aug. 25, 2001.

[0088]Use.—Fresh market.

[0089]Keeping quality.—Very good.

[0090]Resistance.—Insects.—typical of Vitis vinifera. Diseases: typical of Vitis vinifera.

[0091]Shipping quality.—Good.

[0092]Date of first harvest.—Aug. 25, 2001.

[0093]Solids-sugar.—High, about 20 brix at full maturity.

[0094]Refractometer test.—21.0 brix.

[0095] Cluster:

[0096]Bunch size.—Medium.

[0097]Bunch length (peduncle excluded).—About 26.0 cm.

[0098]Bunch width.—About 17.3 cm.

[0099]Bunch weight (natural).—476 g.

[0100]Bunch weight (gibberellic acid treated).—857 g.

[0101]Bunch Density.—Loose.

[0102]Number of berries.—175.

[0103]Form.—Conical.

[0104] Peduncle:

[0105]Length of peduncle.—3.5 cm.

[0106]Lignification of peduncle.—Medium.

[0107]Color:—2.5YR 4/6.

[0108] Berry:

[0109]Size.—Medium.

[0110]Uniformity of size.—Uniform.

[0111]Berry weight (natural).—5.2 g.

[0112]Berry weight (gibberellic acid treated).—8.9 g.

[0113]Shape.—Spherical.

[0114]Presence of seeds.—Rudimentary.

[0115]Cross section.—Circular.

[0116]Dimensions.—Longitudinal axis about 2.5 cm.; horizontal axis about 2.3 cm.

[0117]Skin color (without bloom).—Red: 5R 3/8 to 3/10.

[0118]Coloration of flesh.—Clear.

[0119]Juiciness of flesh.—Very juicy.

[0120]Berry firmness.—Firm.

[0121]Particular flavor.—Muscat.

[0122]Bloom (cuticular wax).—Strong.

[0123]Pedicel length.—12 mm.

[0124]Berry separation from pedicel.—Moderate.

[0125] Skin:

[0126]Thickness.—Medium.

[0127]Texture.—Tender.

[0128]Reticulation.—Absent.

[0129]Roughness.—Absent.

[0130]Tenacity.—Tenacious to flesh.

[0131]Tendency to crack.—Resistant. 

What is claimed is:
 1. The new and distinct variety of TABLE GRAPE ‘13-19-30’ herein described and illustrated and identified by the characteristics enumerated above. 